JPS5893995A - Casing for fluid machine - Google Patents
Casing for fluid machineInfo
- Publication number
- JPS5893995A JPS5893995A JP56190079A JP19007981A JPS5893995A JP S5893995 A JPS5893995 A JP S5893995A JP 56190079 A JP56190079 A JP 56190079A JP 19007981 A JP19007981 A JP 19007981A JP S5893995 A JPS5893995 A JP S5893995A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- fluid
- cylindrical part
- internal
- inner casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】 プ、水車等のケーシングに関する。[Detailed description of the invention] Concerning casings for water turbines, water turbines, etc.
従来、ポンプ、水車等のケーシングは鋳鉄製が主たるも
のであり、近時、鉄板製のものが増加している。これ等
以外の素材を使用したものとして往時コンクリートで作
られたものがある。Conventionally, the casings of pumps, water turbines, etc. have been mainly made of cast iron, but recently, the number of casings made of iron plates is increasing. In the past, there were items made of concrete that were made of materials other than these.
鋳鉄材を用いると材料費が高い。重いので製品が可搬式
の場合に適当でなく、素材取扱時も運搬費が多くか\る
等の問題点があり、鉄板製のものは小型機械についてプ
レス加工が行われるがプレス歪を考慮に入れて加工する
ため技術的に困難な問題がある。プレス製のものは剛性
が少く外力に対して歪み易く小型に限られる。If cast iron is used, the material cost is high. Because it is heavy, it is not suitable if the product is portable, and there are problems such as high transportation costs when handling the material.Those made of steel plates are pressed on small machines, but press distortion must be taken into account. There are technical difficulties involved in processing the material. Press-made ones have low rigidity and are easily distorted by external forces, so they are limited to small sizes.
鉄板製の場合振動騒音を生じ易い等の問題点がある。尚
、コンクリート製のものは極めて大型の水車であり据付
場所において現場施工するため、一般には適しない。If it is made of iron plate, there are problems such as the possibility of generating vibration noise. Additionally, concrete water turbines are extremely large and must be constructed on-site at the installation site, so they are generally not suitable.
一方、近時省資源がとなえられ、素材原料の有限性は現
実に資源獲得競争となっており、現状の鋳鉄、鉄板等が
将来にわたって充分供給される見通しが立っている訳で
はない。On the other hand, resource conservation has become a hot topic in recent years, and the limited availability of raw materials has actually led to competition for resources, and it is not foreseeable that the current cast iron, iron plates, etc. will be sufficiently supplied in the future.
以上のような背景の元に本発明はなされたもので本発明
は耐蝕性があり、振動騒音少く、軽量の流体機械のケー
シングを提供することを目的とするものである。The present invention was made against the above background, and an object of the present invention is to provide a casing for a fluid machine that is corrosion resistant, generates little vibration and noise, and is lightweight.
本発明は流体機械の流体の流入する入口側と流出する出
口側間に流体の作用空間を形成する薄箔の内壁フィルム
を備え、内壁フィルムの外面に密着するプラスチックコ
ンクリート等の材よりなり内部に心金を納めた外面ケー
シングにより構成したものである。The present invention is equipped with a thin foil inner wall film that forms a fluid action space between the inlet side where fluid flows in and the outlet side where fluid flows out, and is made of a material such as plastic concrete that closely adheres to the outer surface of the inner wall film. It consists of an outer casing containing a metal core.
以下、図面に従って本発明の詳細な説明する。実施例は
横型渦巻ポンプであるが本発明を限定するものではない
。第1図は一部縦断面図で示す側面図、第一図は第1図
のA−A断面図である。Hereinafter, the present invention will be described in detail with reference to the drawings. The example is a horizontal centrifugal pump, but the invention is not limited thereto. FIG. 1 is a side view partially shown as a vertical sectional view, and FIG. 1 is a sectional view taken along the line AA in FIG.
内面ケーシング/はポンプとしての内壁フィルムを形成
するもので吸込口ユ、図中羽根車弘を納める部分の空間
であるポンプ室3、吐出口Sが形成されている。内面ケ
ーシング/は中間ケーシング7の内径と同直径の内径を
もつ円筒部りが中間ケーシング7の端部に接して開口し
ている。羽根車ダの外周の周りは渦巻状部//となって
いる。吸込口コとポンプ室3間の吸込口外周部には羽根
車亭のボスとの間を水封するライナリング7.2が内面
ケーシング/(こ嵌入している。The inner casing forms the inner wall film of the pump, and has a suction port Y, a pump chamber 3, which is a space for housing the impeller in the figure, and a discharge port S. The inner casing has a cylindrical portion having an inner diameter that is the same as the inner diameter of the intermediate casing 7 and is open in contact with the end of the intermediate casing 7. Around the outer periphery of the impeller is a spiral part. A liner ring 7.2 is fitted into the inner casing on the outer periphery of the suction port between the suction port and the pump chamber 3 to provide a water seal between the suction port and the boss of the impeller bow.
内面ケーシングlはその流体通過側が流体に適する耐蝕
性、耐摩耗性を備えるものであって一方加工上から中空
成形性のあるものが選ばれる。例えば熱可塑性樹脂、熱
硬化性樹脂、常温硬化性樹脂、プラスチック複合材、ガ
ラス繊維強化樹脂等である。The inner casing 1 is selected to have corrosion resistance and wear resistance suitable for the fluid on its fluid passage side, and to be blow-formable from the viewpoint of processing. Examples include thermoplastic resins, thermosetting resins, room temperature curable resins, plastic composite materials, glass fiber reinforced resins, and the like.
内面ケーシング/の吸込口コ、吐出口S及び円筒部?内
の開口を夫々開口するようにして内面ケーシングlの外
面に密着して外面ケーシング/IIが内面ケーシング/
を蔽っている。外面ケーシング/4’は外形は極めて簡
単な形状をしており、コンクリート系材料が用いられる
。特に本実施例の如く小型軽量のポンプの場合はプラス
チックコンクリートが適当である。外面ケーシングカバ
ーにはケーシング補強材/Sが埋込まれている。ケーシ
ング補強材15は第1図、第2図に示すよう゛に外面ケ
ーシング/ダの外形形状に倣う簡単な形状の外周板)S
Aと側板/jBからなる容器状のもので、外面ケーシン
(3)
グ/ダの外形と内面ケーシングlの中間に介在しており
、外周板/jA端は外面ケーシング/41より現われて
いる。吸込口コを形成する円筒部/A、吐出口Sを形成
する筒状部/7がケーシング補強材/3の面を挿通して
いる。Suction port, discharge port S and cylindrical part of inner casing/? The inner openings are opened respectively so that the outer casing/II is in close contact with the outer surface of the inner casing l and the inner casing/
is covered. The outer casing/4' has an extremely simple outer shape and is made of concrete material. Particularly in the case of a small and lightweight pump as in this embodiment, plastic concrete is suitable. A casing reinforcing material/S is embedded in the outer casing cover. The casing reinforcing material 15 is an outer circumferential plate having a simple shape that follows the outer shape of the outer casing, as shown in FIGS. 1 and 2.
It is a container-shaped thing consisting of A and a side plate /jB, and is interposed between the outer shape of the outer casing (3) and the inner casing l, and the end of the outer peripheral plate /jA appears from the outer casing /41. A cylindrical portion /A forming the suction port and a cylindrical portion /7 forming the discharge port S are inserted through the surface of the casing reinforcing member /3.
ケーシング補強材/Sはケーシング全体の強度剛性を保
つものであって例えば有孔鉄板、鉄板、金網、合成樹脂
が使われる。The casing reinforcing material/S maintains the strength and rigidity of the entire casing, and is made of, for example, a perforated iron plate, an iron plate, a wire mesh, or a synthetic resin.
吸込口コの円筒部/6、吐出口Sの筒状部/りの周囲に
はケーシング補強材15に溶接されてナツト部材/gが
外面ケーシング/41中に埋込まれており、吸入配管、
吐出配管と連結できるようになっている。A nut member /g is welded to the casing reinforcing material 15 and embedded in the outer casing /41 around the cylindrical part / 6 of the suction port and the cylindrical part / of the discharge port S, and the suction pipe,
It can be connected to the discharge piping.
中間ケーシング7の材料は外面ケーシング/ダと同材料
が用いられ、ケーシング補強材/Sの外周板15Aより
もわずかに外側の嵌合部/3とケーシング補強材15の
内周に嵌まり、面Sにて外面ケーシング/Qと接し、外
面ケーシング/4(と接する面S及び嵌合部/3は接着
剤が介在している。The intermediate casing 7 is made of the same material as the outer casing/da, and fits into the fitting part/3 slightly outside the outer circumferential plate 15A of the casing reinforcing material/S and the inner periphery of the casing reinforcing material 15. An adhesive is interposed between the surface S that contacts the outer casing /Q at S, and the surface S that contacts the outer casing /4 (and the fitting portion /3).
(ダ )
中間ケーシング7の嵌合部gに嵌合したケーシングカバ
ー6はプレス製のもので、該カバー6にはモータのブラ
ケット/りが更に嵌入し、ブラケット/9のボルト穴、
該カバー6のボルト穴を挿通して、中間ケーシング7の
タップ穴にボルトJθがねじ込まれている。(Da) The casing cover 6 that fits into the fitting part g of the intermediate casing 7 is made of a press, and the motor bracket is further fitted into the cover 6, and the bolt holes of the bracket 9,
A bolt Jθ is inserted through the bolt hole of the cover 6 and screwed into a tapped hole of the intermediate casing 7.
外面ケーシング/夕はケーシング補強材15に補強され
て内面ケーシング/に加わる内圧を担持する。内面ケー
シング/の流体圧として負圧も加わるので内面ケーシン
グ/と接着強度があり、自体成程度の強度剛性を外面ケ
ーシング/41は必要とするものであるがケーシング補
強材15により補強されるものであり例えばセメント、
セメントを主体とするもの、プラスチックコンクリート
、即ちポリマセメントコンクリート、ポリマ含浸コンク
リート、レジンコンクリート、或はこれらに増量材とし
て砂等を加えたものである。The outer casing is reinforced by a casing reinforcement 15 to carry the internal pressure applied to the inner casing. Since negative pressure is also applied as the fluid pressure of the inner casing/, there is adhesive strength with the inner casing/, and although the outer casing/41 requires strength and rigidity equivalent to its own structure, it is reinforced by the casing reinforcing material 15. For example, cement,
Concrete mainly consists of cement, plastic concrete, ie, polymer cement concrete, polymer-impregnated concrete, resin concrete, or concrete with sand or the like added as an extender.
ブラケット19に嵌入する軸受λコ、モータのエンドブ
ラケットに保持される図示されない軸受に嵌入する軸受
に支持されてモータ軸と一体のポンプ軸23が回転可能
に軸方向移動しないように支持されており、ポンプ軸コ
3にはモータ外にて軸封カラー:14Zが嵌入固定され
、ポンプ軸、23はポンプ室3内に入り、ケーシングカ
バー6との間に装着された軸封装置2Sとの間で軸封さ
れて、先端に羽根車グがポンプ軸23のテーパ部:1.
7Aに嵌入して、ポンプ軸コ3の先端のおねじにナツト
2Aをねじ込み固定されている。これらの羽根車ダ等の
回転部分、支持部分、軸封部分は公知のものである。The pump shaft 23, which is integrated with the motor shaft, is rotatably supported so as not to move in the axial direction by being supported by a bearing λ fitted into the bracket 19 and a bearing fitted into a not-shown bearing held by the end bracket of the motor. A shaft sealing collar 14Z is fitted and fixed to the pump shaft 3 outside the motor, and the pump shaft 23 enters the pump chamber 3 and is connected to the shaft sealing device 2S installed between the casing cover 6 and the shaft sealing collar 14Z. The taper part of the pump shaft 23 is sealed with an impeller at the tip: 1.
7A, and is fixed by screwing a nut 2A onto the male thread at the tip of the pump shaft 3. The rotating parts, supporting parts, and shaft sealing parts of these impellers are known.
モータが附勢されるとポンプ軸23は回転し、羽根車ダ
は回転する。吸込口コより吸込まれた液体は羽根車グに
より増速昇圧されて渦巻室にて圧力を回収されて吐出口
5より吐出される。When the motor is energized, the pump shaft 23 rotates and the impeller rotates. The liquid sucked through the suction port is accelerated and pressurized by the impeller, the pressure is recovered in the swirl chamber, and the liquid is discharged from the discharge port 5.
吸込ロコ内周に加わる負圧はその部分の内面ケーシング
/を圧潰させようとするが外面ケーシング/ダが接着し
ており、外面ケーシング/+の該吸込口コの円筒部l乙
の半径方向の寸法は犬であるから接着力により吸込口コ
の円筒部/6は保持される。ライナリング/2を嵌入し
た部分よりも内側のポンプ室3の内壁は流体圧を受け、
渦巻状部//及びその側面、吐出口Sの筒状部/りは夫
々内圧を受けるから、内面ケーシング/を介して外面ケ
ーシング/ダはケーシング補強材15と共lこ対抗する
。The negative pressure applied to the inner periphery of the suction loco tries to crush the inner casing at that part, but the outer casing is stuck and the radial direction of the cylindrical part l of the suction port on the outer casing Since the dimensions are dog-sized, the cylindrical portion/6 of the suction port is held by the adhesive force. The inner wall of the pump chamber 3 inside the part where the liner ring/2 is fitted receives fluid pressure,
Since the spiral portion, its side surface, and the cylindrical portion of the discharge port S each receive internal pressure, the outer casing opposes the casing reinforcing member 15 via the inner casing.
以上のとおり、本発明の流体機械のケーシングによれば
合成樹脂の内面ケーシングに密着させて外面ケーシング
を配し、外面ケーシング中に補強材を埋込んだから、内
面ケーシングは一体成形して形状を滑かに作ることがで
き流体摩擦が少くポンプ効率を向上させる。外面ケーシ
ングが厚くコンクリート系材料を用いであるから割振作
用があり、振動騒音が少い。コンクリート系であるから
耐候性があり、水に対して錆のおそれがない。内面ケー
シングは耐蝕性の材料を選ぶことにより作用液体に対応
できる。何れも安価な材料で構成され、最も鉄材を多く
使用するケーシングの鉄材が減少する。形状の複雑な内
面ケーシングは中空成型してあり、合成(7)
樹脂であるから製作は簡単である。ケーシング補強材は
形状が極めて簡単であり製作容易である。As described above, according to the fluid machine casing of the present invention, the outer casing is placed in close contact with the inner casing made of synthetic resin, and the reinforcing material is embedded in the outer casing, so the inner casing is integrally molded and has a smooth shape. It can make fluid friction less and improve pump efficiency. Since the outer casing is thick and made of concrete material, it has a vibration distribution effect and generates little vibration noise. Since it is made of concrete, it is weather resistant and there is no risk of rusting when exposed to water. The inner casing can accommodate the working fluid by choosing a corrosion-resistant material. All of them are made of inexpensive materials, and the amount of iron used in the casing, which uses the most iron, is reduced. The inner casing, which has a complex shape, is hollow molded and is easy to manufacture because it is made of synthetic (7) resin. The casing reinforcement material has an extremely simple shape and is easy to manufacture.
第1図は本発明の実施例の一部縦断面図で示す側面図、
第2図は第7図のA−A断面図である。
/・・内面ケーシング λe・吸込口 3・・ポンプ室
り・・羽根車 !―・吐出口 6・拳ケーシングカバ
ー り・・中間ケーシングざ・・嵌合部 タ・・円筒部
//・・渦巻状部 /コ・・ライナリング /3ψ・
嵌合部/4(@拳外面ケーシング /j・・ケーシング
補強材 /6・・円筒部 /7・・筒状部7g−・ナツ
ト部材 /9・・ブラケット、20・・ボルト 2コ・
・軸受 λ3・・ポンプ軸 2t・・軸封カラー 2s
・・軸封装置コロ・・ナツト。
特許出願人 株式会社荏原製作所
代理人新 井 −部
Cl)
第1図FIG. 1 is a side view showing a partial vertical sectional view of an embodiment of the present invention;
FIG. 2 is a sectional view taken along the line AA in FIG. 7. /...Inner casing λe/Suction port 3...Pump chamber...Impeller! -・Discharge port 6・Fist casing cover ・・Intermediate casing zone・・Mating part T・・Cylinder part //・・Spiral part /・・・Liner ring /3ψ
Fitting part /4 (@fist outer casing /j...Casing reinforcing material /6...Cylindrical part /7...Cylindrical part 7g--Nut member /9...Bracket, 20...Bolt 2 pieces...
・Bearing λ3・・Pump shaft 2t・・Shaft seal collar 2s
...Shaft sealing device roller...nut. Patent applicant Ebara Corporation Agent Cl Arai) Figure 1
Claims (1)
用開口、流体作用空間をなす形状、を備える薄板中空の
合成樹脂製の内面ケーシングと、内面ケーシングの開口
している部分を除いて外面に密着してコンクリート系材
料中に補強材を入れて形成せられた外面ケーシングと、
外面ケーシング外形と内面ケーシング間に介在する前記
補強材とからなる流体機械のケーシング。/ A thin hollow synthetic resin inner casing equipped with a fluid inlet and outlet of a fluid machine, openings for assembling internal functional parts, and a shape forming a fluid action space, and an inner casing made of a thin, hollow synthetic resin that is equipped with an outer casing formed by closely fitting a reinforcing material in a concrete-based material;
A casing for a fluid machine comprising an outer casing outer shape and the reinforcing material interposed between an inner casing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56190079A JPS5893995A (en) | 1981-11-27 | 1981-11-27 | Casing for fluid machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56190079A JPS5893995A (en) | 1981-11-27 | 1981-11-27 | Casing for fluid machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5893995A true JPS5893995A (en) | 1983-06-03 |
JPS6230319B2 JPS6230319B2 (en) | 1987-07-01 |
Family
ID=16252006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56190079A Granted JPS5893995A (en) | 1981-11-27 | 1981-11-27 | Casing for fluid machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5893995A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6322400U (en) * | 1986-07-29 | 1988-02-15 | ||
JP2005155604A (en) * | 2003-10-31 | 2005-06-16 | Denso Corp | Fuel pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4947323A (en) * | 1972-04-27 | 1974-05-08 | ||
JPS51103701U (en) * | 1975-02-19 | 1976-08-19 |
-
1981
- 1981-11-27 JP JP56190079A patent/JPS5893995A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4947323A (en) * | 1972-04-27 | 1974-05-08 | ||
JPS51103701U (en) * | 1975-02-19 | 1976-08-19 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6322400U (en) * | 1986-07-29 | 1988-02-15 | ||
JPH0236960Y2 (en) * | 1986-07-29 | 1990-10-05 | ||
JP2005155604A (en) * | 2003-10-31 | 2005-06-16 | Denso Corp | Fuel pump |
JP4534677B2 (en) * | 2003-10-31 | 2010-09-01 | 株式会社デンソー | Fuel pump |
Also Published As
Publication number | Publication date |
---|---|
JPS6230319B2 (en) | 1987-07-01 |
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